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Note 19 - Changes in Accumulated Other Comprehensive Income by Component (Tables) | 6 Months Ended
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Jun. 30, 2026
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized |  |  | Unrealized |  |  |  |  |  |  |  |  |
|  | Net Gain (Loss) |  |  | Net Gain (Loss) |  |  | Retiree |  |  |  |  |
|  | on Interest |  |  | on Steel |  |  | Health |  |  |  |  |
|  | Rate |  |  | Hedging |  |  | Benefit |  |  |  |  |
|  | Swap |  |  | Swap |  |  | Obligation |  |  | Total |
Balance at December 31, 2025 |  | $ | 595 |  |  | $ | 40 |  |  | $ | 2,546 |  |  | $ | 3,181 |
Other comprehensive gain (loss) before reclassifications |  |  | 1,102 |  |  |  | (37 | ) |  |  | — |  |  |  | 1,065 |
Amounts reclassified from accumulated other comprehensive income: (1) |  |  | (403 | ) |  |  | (3 | ) |  |  | (61 | ) |  |  | (467 | )
Balance at June 30, 2026 |  | $ | 1,294 |  |  | $ | — |  |  | $ | 2,485 |  |  | $ | 3,779 |
(1) Amounts reclassified from accumulated other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Other Postretirement Benefit items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actuarial gains |  | $ | (82 | ) |  |  |  |  |  |  |  |  |  |  |  |
Tax expense |  |  | 21 |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (61 | ) |  |  |  |  |  |  |  |  |  |  |  |
Realized gains on interest rate swaps reclassified to interest expense |  | $ | (544 | ) |  |  |  |  |  |  |  |  |  |  |  |
Tax expense |  |  | 141 |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (403 | ) |  |  |  |  |  |  |  |  |  |  |  |
|  | Unrealized |  |  | Unrealized |  |  |  |  |  |  |  |  |
|  | Net Gain (Loss) |  |  | Net Gain (Loss) |  |  | Retiree |  |  |  |  |
|  | on Interest |  |  | on Steel |  |  | Health |  |  |  |  |
|  | Rate |  |  | Hedging |  |  | Benefit |  |  |  |  |
|  | Swap |  |  | Swap |  |  | Obligation |  |  | Total |
Balance at December 31, 2024 |  | $ | 1,836 |  |  | $ | (40 | ) |  | $ | 3,676 |  |  | $ | 5,472 |
Other comprehensive gain (loss) before reclassifications |  |  | (1,491 | ) |  |  | 96 |  |  |  | — |  |  |  | (1,395 | )
Amounts reclassified from accumulated other comprehensive income: (1) |  |  | 749 |  |  |  | — |  |  |  | (24 | ) |  |  | 725 |
Balance at June 30, 2025 |  | $ | 1,094 |  |  | $ | 56 |  |  | $ | 3,652 |  |  | $ | 4,802 |
(1) Amounts reclassified from accumulated other comprehensive income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Other Postretirement Benefit items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actuarial gains |  | $ | (32 | ) |  |  |  |  |  |  |  |  |  |  |  |
Tax expense |  |  | 8 |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (24 | ) |  |  |  |  |  |  |  |  |  |  |  |
Realized gains on interest rate swaps reclassified to interest expense |  | $ | (1,012 | ) |  |  |  |  |  |  |  |  |  |  |  |
Tax expense |  |  | 263 |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (749 | ) |  |  |  |  |  |  |  |  |  |  |  |

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